Hot-water and steam heater.



No. 674,67l. Patented May 2!, I90l.

J. E. coomss. HOT WATER AND STEAM HEATER.

(Application filed Feb. 18, 1901.: (No Model.) 3 Sheets-Sheat I.

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No. 674,6'7l. Patented May 2|, I90I.

J. E. COOMBS. HOT WATER AND STEAM HEATER.

(Application filecLFeb. 18, 1901.) (No Model.) 3 Sheets-Sheet 2.

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No. 674,671. Pafent ed May 2|, I90l.

J. E. CUOMBS.

HOT WATER AND STEAM HEATER.

(Applicgtion filed Feb. 18, 1901.)

A (No Model.) 3 Sheeta-Sheet 3.

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UNITED STATES PATENT Fries.

JOSEPH E. OOOMBS, OF TAUNTON, MASSACHUSETTS, ASSIGNOR. TO WEIR STOVECOMPANY, OF SAME PLACE.

HOT-.WATER AND STEAM HEATER.

SBEGIFICATION formingpart of Letters Patent No. 674,671, dated May 21,1901. Application filed February 18, 1901. serial No. 47,837. (Nomodel.)

To all whom it may concern:

.Be it known that I, JOSEPH E. OooMBs, a citizen of the United States,residing at Taunton, in the county of Bristol and State ofMassachusetts, have invented a new and useful Improvement in Hot-Waterand Steam Heaters, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart of this specification, in explaining its nature.

The invention relates to a hot-water or steam heater in which the mainportions of the heater are made integral and at one casting, the objectof the invention being to provide a cheap, practically jointless, buteffective apparatus.

The invention will now be described in connection with the drawings.

Figure 1 is a view in vertical central section of a hot-water heaterhaving the features of myinvention. Fig. 2 is a view in horizontalsection upon the dotted line 2 2 of Fig. 1 and in plan of parts belowsaid line. Fig. 3 is a view in horizontal section upon the dotted line 33 of Fig. 1. Fig. 4 is a view in elevation of a portion of the upperpart of the heater, a casing or shell forming the smoke passage or finebeing removed. Fig. 5 is a view principally in elevation of the heaterwhen arranged as a steam-heater, a portion of the casing being brokenout to show the modification in construction. I

Referring to the drawings, A represents the main portion ofthe'heater.It has the firepot space a, combustion-chamber a, lines a a and awater-chamber B, in two sections, one of which, the section b, inclosesthe ashpit and combustion-chamber from the bottom to the top of theshell or casting which forms the heater, and the other of which, thesection b, is contained in the upper part of the combustion chamber andis dome or bell shaped and connected at its side and at its top with theouter section. The two sections 1) b of the water-chamber are formed bythe walls I) b b and b the walls 12 b forming the outer section b of thewater-chamber and the casing of the fire-pot and combustionchamber andthe walls 19 19 forming the interior section b of the water-chamber. Thetwo sections 1) b are united by means of the top into the chamber of thedome.

passage b at the lower end of the section Z) and upon its back side, andthe passage b at the upper end of the chamber and the connectionsbetween the walls b forming these passages are integral with the walls.

The interior chamber is so shaped and disposed in the combustion-chamberas to form an upward extension a of the combustionchamber, from whichextend the lines a and the surrounding extension (1 of thecombustion-chamber, into which the lines a open and from which extendthrough the outer chamber-Z) the flues a to a cylindrical chamber orfine C66. The walls of these flues a a are integral with the walls ofthe two sections of the water-chamber. The bell or dome b may have aconnection or chamber 19 extending across the cavity or section of thecombustion chamber it contains, the walls of which are integral with theinner wall of the dome.

The dome is represented as having a single connection 19 with the outerchamber 1). It may have two or more, if desired.

The flue or chamber a is formed by a circular shell 0 of a size to fitupon the top of the outer wall b The lower edge 0 of this shell restsupon a shoulder c on said outer wall 19 and the edge or section 0 aboutits upper opening 0 rests upon the ledge or surface 0 at the top of thewall b surrounding the collar 0 This collar incloses the outlet B of thewater-chamber. The water inlet or inlets are at B The shell 0 also hasthe seat 0 for the flange d of the coupling D, which connects the heaterwith the service pipe or pipes. The coupling in the drawings isrepresented as forked to provide a connection with the twoservice-pipes. The coupling, shell, and heater are bolted or rivetedtogether by the bolts or rivets cl, which pass through the flange of thecoupling, the shell, and the seat of the heater around theoutletopening, these fasteners serving to unite the three partstogether. The shell 0 has a smokeescape port 0 and a clean -out opening0 which is closed by a door 0 (See Fig. 2.)

It will be understood that the products of combustion pass from thelower part of the combustion-chamber both into its extension The chamberopens at its ends and r all a Within the bell or dome and also into itsextension a about the bell or dome and that from the extension Withinthe bell they pass by the fines a to the top part of the outer extensiona where they unite with the products of combustion passing by the outersection to the fines a opening into the passage or fine a common to themall.

This construction provides a large area of heating-surface to theproducts of combustion Which is entirely jointless, and provides for aquick unretarded circulation of the water and for its disposition inrelatively thin volume to the heating-surfaces.

It will be seen that the structure has no joints in its main portion,the only joints in the organization being where the water-supply pipeand the outlet-pipe make connection with the shell.

In Fig. 5 the structure is modified to provide a steam-dome, and in lieuof the shell 0 there is then employed a shell which I have lettered Eand which includes not only a flue the equivalent of the fine a, but asteamchamber c. This chamber is connected with the water-chamber Bin thesame manner that the coupling D is connected with it, and it has at itsupper end a seat 6 for the flange of a steam service-pipe 6 The chamber6 is connected with the water-inlet by a circulating-passage e intheconnecting-pipe e. The shell also has a lateral extension 6 forproviding supports for a Water-gage, and it is further provided withmeans for the attachment of a safety-valve and a damper-regulator. I

Having thus fully described my invention, 1 claim and desire to secureby-Letters Patent of the United States 1. A jointless steam or hot-waterheater, 4o

integral walls disposed to form a water-chamber surrounding a tire-pot,and combustionchamber and also a water-chamber inclosed in thecombustion-chamber and the connections between the two chambers, thecombustion-chamber extending on the inner and outer sides of saidinclosed waterrchamber, and smoke-fines extending through the inclosedchamber and the outer chamber.

2. The combination in a steam or hot-Water heater of the integralcasting consisting of the outer Wall 17 the inner Wall b the walls b', bunited to the inner wall by integral connections forming the passages bb the firepot, combustion-chamber, combustion-chamber extensions andtheir dues with the shell 0 surrounding the upper part of this outerwall 13 and forming a common connecting smoke fine or passage for thedue a 3. The combination in a steam or hot-water heater of the wall 19having the seat 0', flues a and a seat about the outlet B with the shell0 having an opening 0 an edge 0 about the opening to bear on said seat 0and a lower edge 0 to bear against the seat 0.

4. The combination in a heater of the character specified of a wallhaving the shoulder c, fines a? and a seat about its outlet with a shellG having a flange to rest upon said seat,

an edge to bear against said shoulder and a seat for a coupling with acoupling having a flange to bear on said seat, the coupling, shell andWall being united by fastenings common to the three parts.

JOSEPH E. COOMBS. [L. s] In presence of- MARY P. WALKER, ELISHA T.JACKSON.

